Lipoma Classification
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Lipoma Classification On the Web |
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American Roentgen Ray Society Images of Lipoma Classification |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Classification
There are many subtypes of lipomas:[1]:624–5
- Adenolipomas are lipomas associated with eccrine sweat glands.[2]:627
- Angiolipoleiomyomas are acquired, solitary, asymptomatic acral nodules, characterized histologically by well-circumscribed subcutaneous tumors composed of smooth muscle cells, blood vessels, connective tissue, and fat.[1]:627
- Angiolipomas painful subcutaneous nodules having all other features of a typical lipoma.[1]:624[3]
- Cerebellar pontine angle and internal auditory canal lipomas[4]
- Chondroid lipomas are deep-seated, firm, yellow tumors that characteristically occur on the legs of women.[1]:625
- Corpus callosum lipoma is a rare congenital brain condition that may or may not present with symptoms.[5] This occurs in the corpus callosum, also known as the colossal commissure, which is a wide, flat bundle of neural fibers beneath the cortex in the human brain.
- Hibernomas are lipoma of brown fat.
- Intradermal spindle cell lipomas are distinct in that they most commonly affect women and have a wide distribution, occurring with relatively equal frequency on the head and neck, trunk, and upper and lower extremities.[1]:625[3]
- Neural fibrolipomas are overgrowths of fibro-fatty tissue along a nerve trunk, which often leads to nerve compression.[1]:625
- Pleomorphic lipomas, like spindle-cell lipomas, occur for the most part on the backs and necks of elderly men and are characterized by floret giant cells with overlapping nuclei.[1]:625
- Spindle-cell lipomas are asymptomatic, slow-growing subcutaneous tumors that have a predilection for the posterior back, neck, and shoulders of older men.
- Superficial subcutaneous lipomas, the most common type of lipoma, lie just below the surface of the skin.[6] Most occur on the trunk, thigh, and forearm, although they may be found anywhere in the body where fat is located.
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 James, William D.; Berger, Timothy G.; Elston, Dirk M. (2005). Andrews' Diseases of the Skin: Clinical Dermatology (10th ed.). London: Elsevier. ISBN 0-7216-2921-0.
- ↑ James, William D.; Berger, Timothy G.; Elston, Dirk M. (2011). Andrews' Diseases of the Skin: Clinical Dermatology (11th ed.). London: Elsevier. ISBN 9781437703146.
- ↑ 3.0 3.1 Rapini, Ronald P.; Bolognia, Jean L.; Jorizzo, Joseph L. (2007). Dermatology: 2-Volume Set. St. Louis: Mosby. p. 1838. ISBN 1-4160-2999-0.
- ↑ Crowson MG, Symons SP, Chen JM. "Left cerebellopontine angle lipoma with mild brainstem compression in a 13-year-old female". Otology& Neurotology.
- ↑ Wallace D (December 1976). "Lipoma of the corpus callosum". J Neurol Neurosurg Psychiatry. 39 (12): 1179–85. doi:10.1136/jnnp.39.12.1179. PMC 492562. PMID 1011028.
- ↑